Justin Bieber’s mother Pattie Mallette shared her life story on her memoir “Nowhere but Up,” detailing her struggles and sacrifices through sexual abuse and teen pregnancy. The new book, according to Justin Bieber, is going to change many people’s lives.

Pattie Mallette and her superstar son appeared on NBC’s “Today” show Tuesday, and revealed their sweet mother-and-son relationship in an interview.

Having suffered sexual abuse since the age of four, Bieber’s mother suffered from through drug and alcohol abuse in her teenage. She became pregnant at the age of 17. Although Justin’s father Jeremy Bieber was in love with the newborn son, the couple eventually split up, turning Mallette into a single mother at the age of 18.

When Mallette found out about her pregnancy, the option to abort the baby did not cross her mind.

"I just knew I couldn't," the 36-year-old mother of Bieber told Today's Kathie Lee Gifford. "I just know I had to keep him."

When Justin Bieber was born, "he sounded like he was singing,” Mallette said.

"I always wanted to write a book about my story," Mallette said in an interview, according to USA TODAY. "I wanted to be as vulnerable as I could, so that young girls who have been through similar things could relate. I pretty much bared my soul. It definitely furthered my healing process."

Bieber believes that his mother’s book will change a lot of people’s lives.

"My mom is the strongest woman I've ever met," Justin Bieber says in the forward of “Nowhere but Up.”

"I've always known it, but this book has helped to remind me just how strong she is."

Undoubtedly, Justin Bieber is a mom’s boy.

“She’s been like a friend, someone I could talk to, and a good role model and I want to grow up and have just the heart my mom has, cos she just has a big heart,” Bieber said.

The 18-year-old star sang a line of a song he made for the Mother’s Day.

The new book Nowhere But Up is part of her "healing journey," according to Justin’s mom. Mallette’s spiritual awakening came after a suicide attempt, when a Christian counselor visited her in a psychiatric war.

"Faith has played a huge role. I'm really grateful to God and to all the people who have surrounded me and loved me,” she said.

"It doesn't matter where you find yourself today – broken, hurting, wounded, or shamed. If God can help me find my way up, I promise, He can do the same for you," said Mallette.

"I've spent most of my adult life sifting through the tangled web of emotional wounds and the debris left by the darkness in my childhood," says Mallette in Chapter One.

"In sharing difficult moments, I wanted to find that fine line between truth and honor. I didn't want to blame anybody or shame anybody; we're all imperfect and we all make mistakes."

Justin Bieber, on the other hand, also released his second book “Just Getting Started” last week.

In it, the “Baby” singer shared his humble road to superstardom.

“I didn’t grow up with aspirations to become a big pop star. I just wanted to be a regular kid who does all of the normal things other kids do,” Bieber writes.

“I started posting videos on YouTube when I was 12 so my family could hear me sing. I never knew it was going to be a big thing. I mean, we were just posting videos, and a month or two later, out of nowhere, tons of viewers were watching. I come from a little town in Canada called Stratford, with a population of 30,000 people, and that made all of this even crazier.”

Apparently, Bieber hadn’t dreamt big until the world showed him how.

“I never thought I’d get to do anything other than maybe become a carpenter and maybe one day turn that into a business. The mere thought of becoming a star didn’t even seem possible. It was like going to the moon or winning the lottery. But, a couple of years later, by the time I was 14, I was no longer just singing for my family—the world was hearing me sing too. The rest is history.”

And now, what is his dream?

”A lot of people have asked me what I think my future looks like. I really don’t know how to answer them. I am still so young and have a lot I still want to do. When I think about the future, I hope to someday win a Grammy (or two), and maybe do a little more acting. I enjoy the process of making great music, from writing to recording to performing, and hope to keep on doing that too,” said Bieber.